Lutron CO2-9914SD – CO2 Meter Humidity/Temperature in one probe

Circuit

Custom one-chip of microprocessor LSI circuit.

Display

LCD size : 52 mm x 38 mm (Dot Matrix) LCD with green backlight ( ON/OFF ).

Measurement

CO2 (Carbon dioxide )
Humidity
Dew point Temp., Wet bulb Temp. Temperature

Sensor structure

CO2

NDIR *Nondispersiveinfraredsensor

Humidity

Precision capacitance sensor

Temp.

Precision thermistor

Datalogger Sampling Time Setting range

Auto

2 sec to 8 hour 59 min. 59 sec. @Sampling time can set to 1 second,

but memory data may loss.

Manual

Push the data logger button once will save data one time. @Set the sampling time to

0 second.
@Manual mode, can also select the

1 to 99 position ( Location ) no.

Data error no.

0.1% of total saved data max.

Memory Card

SD memory card. 1 GB to 16 GB.

Advanced setting
@ main setting

* SD memory card Format
* Set clock time
* Set sampling time
* Auto power OFF management * Set beep Sound ON/OFF

* Decimal point of SD card setting * Temp. unit setting
* Alarm value setting
* Altitude value setting

Data Hold

Freeze the display reading.

Memory Recall

Maximum & Minimum value.

Sampling Time of Display

Approx. 1 second.

Data Output

RS 232/USB PC computer interface. * Connect the optional RS232 cable UPCB-02 will get the RS232 plug.

* Connect the optional USB cable USB-01 will get the USB plug.

Power Supply

* Alkaline or heavy duty DC 1.5 V battery ( UM3, AA ) x 6 PCs, or equivalent.

* ADC 9V adapter input. ( AC/DC power adapter is optional ).

Operating Temperature

0 to 50 °C. ( 32 to 122 °F ).

Operating Humidity

Less than 80% R.H.

Power Current

CO2 measure- ment

Normal operation ( w/o SD card save data and LCD Backlight is OFF) :

Approx. DC 136.5 mA.
When SD card save the data and LCD Backlight is OFF) :

Approx. DC 166 mA.